Float System

Fig. 1 Float System:

PURPOSE
Maintains a fuel resovoir in the carburetor.

LOCATION
An integral part of the carburetor.

OPERATION
The primary and secondary circuits of the carburetor share the same float system. Fuel flows from the fuel pump through the lines to the inlet of the carburetor where it passes through the needle and seat. Fuel entering the chamber rasises a float which in turn pushes the needle into the seat. As the fuel level in the chamber lowers (due to comsumption) the needle lowers and allows fuel to enter the chamber. This allows the fuel level to remain suffecient and constant under all operating conditions. The height of fuel within the chamber is adjustable by bending a tab on the float.
The float chamber is also equipped with a ventilation system. Refer to Emission Control Systems for description of the Float Chamber Ventilation (FCV) system.